With the advent of the digital age, computer-centric multimedia technology has been popularized and improved. In the field of education, the teaching and research informatization has become an unstoppable development trend.
I. Project background
In order to adapt to the development of education, teaching and research modernization and informatization, four schools including Jinlong Primary School in Nansha District of Guangzhou City introduced the AVA HD recording and broadcasting system and combined it with the video conference system in the school to further improve and transform their teaching facilities. On the basis of this, we will work together to build an information education education and research system. It can also be said that this project is aimed at the application of the recording and broadcasting system and video conferencing system in the field of modern education. It is to establish a two-way video teaching and research activity of “one lesson and two lecturesâ€, to build an information education education and research system, and to promote the sharing of quality teaching resources. And expanded.
Second, the use of equipment
Guangzhou Nansha, the four schools participating in the “one lesson and two lectures†two-way video teaching and research activities, used the PROPRE-6HD HD recording system and school in Guangzhou Aowei Technology (hereinafter referred to as “AVAâ€). Existing video conferencing systems.
AVAPROPRE-6HD HD recording system product map
Among them, AVA's PROPRE-6HD HD recording and broadcasting system is an integrated embedded structure with stable performance. At the same time, the recording and broadcasting system is equipped with two HDMI live ring-out interfaces, supporting two video encoding types of H.264 and MPEG-4, and the video encoding frame rate can reach up to 30fps. In terms of video signal input, the system can input 3 high/standard definition video and 1 VGA, and the VGA resolution is up to 1280x800@60.
AVA guide platform interface
In the recording and broadcasting functions, AVA's PROPRE-6HD HD recording and broadcasting system has embedded remote navigation platform function. Remote navigation uses B/S control mode. The administrator can remotely manage through IE browser. It has real-time live broadcast, remote broadcast, synchronous recording, remote interaction, online on-demand and user management, which meets the needs of information education.
In addition, the classroom is equipped with a projector and a large screen. The attending teachers can learn the lectures of the other teachers through these two large screens, and compare them with the lecture skills and curriculum of the teachers. Interaction, so that quality courses can be exchanged in a more timely and effective way.
Third, the project results
In this project, the existing video conferencing systems in the four schools in Nansha have the characteristics of strong adaptability of the terminal network and small delay of remote transmission, which can realize the simultaneous transmission of the venue's announcements along with the venue. However, the video conferencing system has higher requirements for real-time network communication and bandwidth of network communication. In order to achieve a smoother live broadcast in the classroom, you need to use high-quality private network transmission.
After the AVA recording and broadcasting system is combined with the video conferencing system, the breadth of the video transmission can be expanded by reducing the code stream, forwarding, and on-demand, and the video content and the speaker VGA can be realized on the recording of the video signal. High-definition simultaneous recording of signals.
Nansha "One lesson and two lectures" two-way video teaching and research activities video screenshots
In addition, Jinlong Elementary School and Hengli Elementary School also used the AVA HD recording and broadcasting system to conduct on-the-spot live recording of the classroom, and the live video broadcast and interaction of the video by its existing conference video system realized remote "one The purpose of the two lectures, "network teaching and research", "same class heterogeneity" teaching purposes.
Nansha District "One lesson and two lectures" two-way video teaching and research activities on-site
In this project, the four schools in Nansha combined AVA's high-definition recording and broadcasting system with video conferencing system, making the application of visual information technology such as recording and broadcasting systems and video conferencing systems more effective and popular in education and teaching. At the same time, it also tried to educate informatization and created a learning and research system for modern information education, which is also conducive to promoting the sharing of excellent teaching resources in the region.
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